Add Yahoo as a preferred source to see more of our stories on Google. An illustration of the saber-toothed predator Inostrancevia standing above its dead prey with its jaws wide open and large canines ...

Fossils of an unusual saber-toothed predator that lived during the worst mass extinction event on Earth are revealing how unstable things were for animals during “the Great Dying.” A series of ...

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During the Permian-Triassic extinction, Inostrancevia, a saber-toothed predator, emerged as a dominant force. Fossils discovered in Russia and South Africa reveal its transcontinental existence and ...

Two hundred and fifty-two million years ago, Earth experienced a mass extinction so devastating that it’s become known as “the Great Dying.” Massive volcanic eruptions triggered catastrophic climate ...

Around 252 million years ago, Earth experienced its most catastrophic extinction event. Widely known as the Permian extinction and dubbed the “Great Dying,” it wiped out an estimated 90 percent of ...

It is difficult to picture how Earth nearly died. About 250 million years ago, life on the planet was hanging by a thread. Scientists refer to this horrific period as the "Great Dying", where it ...

Editor’s Note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Fossils of an unusual saber-toothed ...